Assignee
WILLIAMS DOUGLAS J
4 granted patents·68 citations·filing 1975–1979
Top patents by PatentIndex Score
4 records- 0166US4244354ASolar panelWILLIAMS DOUGLAS J·Filed 1979·Granted Jan 13, 1981·21 cites·26 claims
- 0265US4016080AFluid filter and purifying apparatusWILLIAMS DOUGLAS J·Filed 1975·Granted Apr 5, 1977·21 cites·8 claims
- 0363US4215646ALow pressure differential detecting whistleWILLIAMS DOUGLAS J·Filed 1978·Granted Aug 5, 1980·18 cites·16 claims
- 0445US4252076AAutomatic signaling deviceWILLIAMS DOUGLAS J·Filed 1978·Granted Feb 24, 1981·8 cites·1 claims
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